Elevator door device and elevator
The height-adjustable cleaning tool in elevator doors addresses the issue of foreign substance accumulation by aligning with groove positions, ensuring effective cleaning and preventing damage, while maintaining a compact design.
Patent Information
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- FUJITEC CO LTD
- Filing Date
- 2024-11-27
- Publication Date
- 2026-06-08
Smart Images
Figure 2026093283000001_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to an elevator door device and an elevator.
Background Art
[0002] An elevator car and each floor landing each include a door device. The car door device includes a car door, a door support structure, and a door opening / closing device. The landing door device includes a landing door and a door support structure. When the car stops at a floor, the door opening / closing device operates, and the car door performs an opening operation. The car door and the landing door are operatively connected, and the landing door performs an opening operation following the opening operation of the car door. After being open for a predetermined time or when a door close button is pressed, the door opening / closing device reverses its operation, the car door performs a closing operation, and the landing door performs a closing operation following this.
[0003] The door support structure includes a sill. The sill, also referred to as a “heel,” is provided along the lower edge of the opening of the car and the lower edge of the opening of the landing. The sill is a structure that supports the lower part of the door while enabling the opening and closing operation of the door. The sill has a groove along the lower edge of the opening. The door has a guide shoe that protrudes downward from the lower end. The guide shoe is inserted into the groove of the sill, whereby the lower part of the door is supported so as not to move in the front-rear direction.
[0004] Foreign substances such as dust and gravel may enter and accumulate in the groove of the sill, which may hinder the opening and closing operation of the door. For this reason, a door device is known in which a brush cleaning tool is attached to the lower part of the door to clean the groove as the door moves (Patent Document 1). Note that cleaning means, for example, moving foreign substances with the cleaning tool and dropping them into the hoistway through a hole formed in the bottom surface of the groove.
Prior Art Documents
Patent Documents
[0005]
Patent Document 1
Summary of the Invention
[0006] Incidentally, the depth of the groove may vary depending on the material of the threshold. Also, the installation height of the door (i.e., the height of the bottom of the door) may vary depending on the door's installation adjustments. In these cases, the positional relationship between the bottom of the door and the bottom surface of the threshold groove will differ, which may prevent cleaning tools from being at the appropriate height.
[0007] Therefore, the present invention has been made in view of these circumstances, and aims to provide an elevator door device and elevator that can appropriately install cleaning tools according to the conditions of the elevator installation site. [Means for solving the problem]
[0008] The elevator door device according to the present invention is An elevator door device comprising a door that moves left and right to open and close an opening, the door having a guide body protruding from its lower end, a sill positioned along the lower edge of the opening and having a groove into which the guide body is inserted, and a cleaning tool that protrudes from the lower end of the door and is inserted into the groove to clean the groove as the door moves, The guide body comprises a guide portion that is inserted into a groove, a fixing portion that extends upward from the guide portion and has a projection that protrudes laterally, and is fixed to the lower part of the door, and a recess drawn between a vertical line passing through the tip edge of the projection of the fixing portion and the side edge of the guide portion. The cleaning tool comprises a cleaning section inserted into a groove adjacent to the guide portion of the guide body, and a fixing section extending upward from the cleaning section and fixed to a projection of the fixing portion of the guide body, and is provided so as to be height-adjustable. This is an elevator door mechanism.
[0009] As one embodiment of the elevator door device according to the present invention, The cleaning and fixing parts of the cleaning tool are positioned so as to be contained within an area defined by vertical lines passing through the tip edge of the projection of the fixing part of the guide body and vertical lines passing through the side edge of the guide part of the guide body. This configuration can be adopted.
[0010] As one embodiment of the elevator door device according to the present invention, The cleaning tool can be repositioned to a height where, when viewed from the left or right, the cleaning part of the cleaning tool is within the projection area of the guide part of the guide body. This configuration can be adopted.
[0011] As one embodiment of the elevator door device according to the present invention, The thickness of the cleaning part of the cleaning tool in the front-to-back direction is smaller than the thickness of the guide part of the guide body in the front-to-back direction. This configuration can be adopted.
[0012] As one embodiment of the elevator door device according to the present invention, The projection of the fixing part of the guide body has a through hole. The fixing part of the cleaning tool has an elongated through-hole that is long in the vertical direction. Using a fastener inserted through two through-holes, the protruding part of the guide body's fixing section is fixed to the lower part of the door, and the fixing section of the cleaning tool is fixed to the protruding part of the guide body's fixing section. This configuration can be adopted.
[0013] The elevator according to the present invention is The above door device is provided It's an elevator. [Effects of the Invention]
[0014] According to the present invention, the cleaning tool is provided in a height-adjustable manner, and its height can be adjusted to match the positional relationship between the lower part of the door and the bottom surface of the groove in the threshold. Therefore, according to the present invention, the cleaning tool can be appropriately provided according to the conditions of the elevator installation site.
[0015] Moreover, according to the present invention, the cleaning part of the cleaning tool is arranged close to the guide part of the guide body, and the fixing part of the cleaning tool has a form extending upward from the cleaning part. Therefore, according to the present invention, the cleaning tool can have a compact overall design without protruding greatly sideways from the side edge of the guide body.
Brief Description of the Drawings
[0016] [Figure 1] Figure 1 is a perspective view of an elevator. [Figure 2] Figure 2(a) is a front view of the car seen from the landing side with the car door fully closed. Figure 2(b) is a front view of the car with the car door fully open. [Figure 3] Figure 3 is a partial cross-sectional side view of the car door device and the landing door device. [Figure 4] Figure 4(a) is a front view of the lower part of the car door. Figure 4(b) is a cross-sectional view taken along line A-A of Figure 4(a). [Figure 5] Figure 5(a) is a front view of the peripheral part of the guide shoe on the door closed side of the car door. Figure 5(b) is a cross-sectional view taken along line B-B of Figure 5(a). Figure 5(c) is a front view of the peripheral part of the guide shoe on the door closed side of the car door with the cleaning tool removed. Figure 5(d) is a cross-sectional view taken along line C-C of Figure 5(c). [Figure 6] Figure 6(a) is a front view of the guide shoe. Figure 6(b) is a front view of the cleaning tool. [Figure 7] Figure 7(a) is a front view of the guide shoe and the cleaning tool with the position of the cleaning tool lowered. Figure 7(b) is a side view of Figure 7(a). Figure 7(c) is a front view of the guide shoe and the cleaning tool with the position of the cleaning tool raised. Figure 7(d) is a side view of Figure 7(c). [Figure 8]Figure 8(a) is a front view of a guide shoe and cleaning tool according to another embodiment, with the cleaning tool in the lowered position. Figure 8(b) is a side view of Figure 8(a). Figure 8(c) is a front view of a guide shoe and cleaning tool according to another embodiment, with the cleaning tool in the raised position. Figure 8(d) is a side view of Figure 8(c). [Modes for carrying out the invention]
[0017] The following describes one embodiment of an elevator equipped with a door device according to the present invention.
[0018] As shown in Figure 1, the elevator 1 comprises a hoistway 2 and a car 5. The hoistway 2 extends vertically within a building with multiple floors. The car 5 moves up and down within the hoistway 2 by the drive of a drive unit, and stops at a designated floor when the drive unit is stopped.
[0019] The elevator car 5 is equipped with an elevator car door device 55. The elevator car door device 55 comprises an elevator car door 56, a door support structure 58, and a door opening and closing device 59. The elevator car door 56 moves in the left-right direction (horizontal direction from left to right, hereinafter the same) to open and close the opening at the front of the elevator car 5 (elevator entrance / exit) and allow people to get on and off. The elevator car door 56 can be a double-opening type or a single-opening type. The door support structure 58 is a structure that supports the elevator car door 56 while enabling its opening and closing operation. The door opening and closing device 59 is a device for opening and closing the elevator car door 56.
[0020] In contrast, the landing 30 on each floor is equipped with a three-sided frame 31 and a landing door device 35. The three-sided frame 31 is formed on the wall surface, and the inside of the frame is an opening of a size corresponding to the opening of the elevator car 5. The landing door device 35 is equipped with a landing door 36 and a door support structure 38. The landing door 36 moves in the left-right direction to open and close the opening (landing entrance) in the three-sided frame 31, allowing people to get on and off. The landing door 36 also comes in double-opening and single-opening types, corresponding to the elevator car door 56. The landing door 36 is normally closed by an elastic force, and opens against the elastic force in response to the opening movement of the elevator car door 56 of the elevator car 5 when it is stopped on the floor, and closes by the elastic force in conjunction with the closing movement of the elevator car door 56. The door support structure 38 is a structure that supports the landing door 36 while enabling the opening and closing movement of the landing door 36.
[0021] As shown in Figures 2 and 3, the car door 56 comprises a door panel 560, a door hanger 561, and a connector 575. The door panel 560 is positioned along a vertical plane and is the main body of the car door 56 that opens and closes the opening 5a of the car 5. The door panel 560 is connected to the lower end of the door hanger 561, is integrated with the door hanger 561, and is suspended and supported by the door hanger 561. The door hanger 561 comprises a pair of rollers 562, 562. The pair of rollers 562, 562 are positioned at the upper end of the door hanger 561 with a gap between them in the left-right direction. The connector 575 is attached to the upper end of the door hanger 561 between the pair of rollers 562, 562. The connector 575 is a device that connects the car door 56 (and its door hanger 561) to the drive belt 594 of the door opening and closing device 59, which will be described later.
[0022] The door support structure 58 comprises a door rail 580 and a sill 581. The door rail 580 is formed in a strip shape and is provided in the left-right direction on the upper front of the car 5. The rollers 562, 562 of the door hanger 561 are placed on the upper edge of the door rail 580, so that the car door 56 is suspended from the door rail 580 in a state that allows it to slide left-right along the door rail 580. The door rail 580 is a structure that supports the upper part of the car door 56 while enabling the opening and closing operation of the car door 56. The sill 581 is provided in the left-right direction on the lower front of the car 5 along the lower edge of the opening 5a of the car 5, and so that both ends extend left and right beyond the lower edge of the opening 5a. The sill 581 has a groove 581a. The groove 581a is formed along the left-right direction and receives a guide shoe 563 that protrudes downward from the lower end of the car door 56. The guide shoe 563 corresponds to the guide body of the present invention. The sill 581 is a structure that supports the lower part of the cage door 56 while enabling the opening and closing operation of the cage door 56.
[0023] The landing door 36 and door support structure 38 are the same as the car door 56 and door support structure 58.
[0024] The door opening and closing device 59 comprises a drive motor 590, a reduction pulley 591, a pair of pulleys 592, 592, a reduction belt 593, and a drive belt 594. The drive motor 590 is provided on the upper front part of the car 5. The reduction pulley 591 is provided on either the left or right end of the upper front part of the car 5. One pulley 592 is provided coaxially and integrally with the reduction pulley 591. The other pulley 592 is provided on either the left or right end of the upper front part of the car 5. The reduction belt 593 is an endless belt wrapped between the drive shaft of the drive motor 590 and the reduction pulley 591. The drive belt 594 is an endless belt wrapped between the pair of pulleys 592, 592. The drive belt 594 is provided in the left-right direction and is provided parallel to the door rail 580.
[0025] When the drive motor 590 is driven, rotation is transmitted to the reduction pulley 591 via the reduction belt 593, causing the reduction pulley 591 and pulley 592 to rotate, and consequently the drive belt 594 to move in a circular motion. As a result, the two car doors 56, 56 on the left and right reciprocate along the door rail 580, opening and closing. One car door 56 is connected to one side of the drive belt 594 by a connecting body 575, and the other car door 56 is connected to the other side of the drive belt 594 by a connecting body 575. As a result, the pair of car doors 56, 56 move in opposite directions. In other words, the car door device 55 and the landing door device 35 are of the center-opening type, in which the opening 5a of the car 5 opens from the center.
[0026] As shown in Figure 4, the guide shoes 563 are provided at two locations on the left and right sides of the lower part of the cage door 56 (door panel 560). The guide shoes 563 are provided at two locations: on the door stop side (door closing side) and on the door pocket side (door closing side). The guide shoes 563 are detachably attached to the cage door 56 (door panel 560). The lower part of the cage door 56 (door panel 560) is provided with a bracket 560a that is offset forward from the rear and has a predetermined gap between it and the rear, and the guide shoes 563 are detachably attached to the bracket 560a.
[0027] The two guide shoes 563, 563 are basically the same in configuration. However, they differ in two respects: i) the width W1 in the left-right direction of the door-closing guide shoe 563 is shorter than the width W2 in the left-right direction of the door-opening guide shoe 563, and ii) the door-closing guide shoe 563 is equipped with a cleaning tool 570.
[0028] As shown in Figures 5 and 6, the guide shoe 563 (hereinafter, when simply referred to as the guide shoe, it refers to the guide shoe on the door closing side) functionally comprises a guide portion 563a, a fixing portion 563b, and a recess 563c.
[0029] The guide portion 563a protrudes downward from the lower end of the car door 56, and at least its tip is inserted (engaged) into the groove 581a of the sill 581. The guide portion 563a has an elongated shape in the left-right direction and is guided into the groove 581a as the car door 56 moves.
[0030] The fixing portion 563b extends upward from the guide portion 563a and is attached to and fixed to the bracket 560a. The fixing portion 563b is attached to and fixed to the bracket 560a using a plurality of fasteners (two fasteners in this example) 566. The fixing portion 563b has round holes 563d as through holes for the shafts of the fasteners 566. Two round holes 563d are formed in the fixing portion 563b, separated in the left-right direction. The round holes 563d are formed at the same height position, near one side edge of the fixing portion 563b and near the other side edge. Corresponding to these locations, the bracket 560a also has round holes as through holes for the shafts of the fasteners 566. As an example, the fastener 566 is a fastener consisting of a combination of a bolt and a plate nut 566a (including appropriate washers, spring washers, etc. as needed; the same applies hereinafter when referring to the fastener). Alternatively, if the bracket 560a is formed with a screw hole (locking hole) rather than a round hole, for example, the fastener 566 is a fastener consisting of a bolt and a screw hole.
[0031] The recess 563c is a recess defined between a vertical line passing through one side edge of the fixing portion 563b (in this example, the side edge on the door closing side, which is the tip edge of the second projection 564b described later) and one side edge of the guide portion 563a (in this example, the side edge on the door closing side).
[0032] The guide shoe 563 is composed of a base 564 and a guide member 565 in terms of its components.
[0033] The base 564 is a flat plate. The base 564 is modified from the base used in the door-opening guide shoe by cutting off one of the lower corners. The base 564 has a rectangular shape, with the lower corner on the door-closing side being cut off in a rectangular shape. As a result, the base 564 comprises a first projection 564a and a second projection 564b. The first projection 564a is a portion that protrudes downward with a width narrower than the left-right width of the base 564, as one side edge (in this example, the side edge on the door-closing side) is offset in a direction toward the other side edge. The second projection 564b is a portion that protrudes laterally with a width narrower than the vertical width of the base 564, as the lower edge is offset in a direction toward the upper edge. The first projection 564a and the second projection 564b have a rectangular shape.
[0034] The lower part of the second projection 564b has one of two circular holes 563d, 563d (in this example, the circular hole on the door closing side) 563d. The upper part of the second projection 564b has a screw hole 563e. The screw hole 563e is a locking hole for the shaft of a fastener used to fix the cleaning tool 570 to the second projection 564b. The screw hole 563e is formed above the circular hole 563d. As a result, the circular hole 563d and the screw hole 563e are located on the same vertical line (their respective centers).
[0035] The guide member 565 is made of a material such as hard resin or rubber and has wear resistance, making it resistant to repeated sliding contact with the groove 581a. The guide member 565 has a slot into which the first projection 564b is fitted, and it is integrated with the base 564. Alternatively, the guide member 565 is integrally molded with the base 564, for example, by molding.
[0036] Functionally, the cleaning tool 570 comprises a cleaning section 570a and a fixing section 570b.
[0037] The cleaning section 570a protrudes downward from the lower end of the cage door 56 and is positioned close to the guide section 563a of the guide shoe 563, with at least its tip being inserted into the groove 581a of the threshold 581. The cleaning section 570a has a predetermined number of brushes planted at the lower part of an enlarged head section, and the predetermined number of brushes extend downward from the lower surface of the head section in a manner in which they are all of the same length.
[0038] The fixing portion 570b extends upward from the cleaning portion 570a and is attached to and fixed to the second projection (mounting portion) 564b of the base 564. The fixing portion 570b has a flattened shape in the front-rear direction and an elongated shape in the vertical direction, with its rear surface offset toward the front, and extending straight upward. The fixing portion 570b is attached to and fixed to the base 564 using a plurality of fasteners (two fasteners in this example) 566, 573. The fixing portion 570b has elongated holes 570c as through holes for the shafts of the fasteners 566, 573. The elongated holes 570c are elongated holes in the vertical direction. The elongated holes 570c are formed in two locations on the fixing portion 570b that are separated vertically. The elongated holes 570c are formed at the lower end and upper end of the fixing portion 570b. The fastener 566 also serves as the fastener for the fixing portion 563b of the guide shoe 563. However, the fastener may be divided into one for fixing the guide shoe 563 and one for fixing the cleaning tool 570. For example, the fastener 573 is a fastener consisting of a bolt and a screw hole 563e in the fixing portion 563b of the guide shoe 563.
[0039] The cleaning tool 570 is composed of a base 571 and a brush 572. The base 571 is made of resin. The brush 572 is either a hard or soft brush, and is flexible to varying degrees depending on whether it is hard or soft.
[0040] As shown in Figure 7, the cleaning portion 570a and the fixing portion 570b of the cleaning tool 570 are positioned to fit within an area (within the width area of the recess 563c) defined by a vertical line passing through the tip edge of the projection of the fixing portion 563b of the guide shoe 563 and a vertical line passing through the side edge of the guide portion 563a of the guide shoe 563.
[0041] The thickness T2 of the cleaning section 570a in the front-to-back direction is smaller than the thickness T1 of the guide section 563a in the front-to-back direction. Also, the height H2 of the cleaning section 570a is smaller than the height H1 of the guide section 563a. Therefore, by loosening the fasteners 566 and 573 and moving the cleaning tool 570 upward, the cleaning tool 570 can be repositioned to a height position where, as shown in Figures 7(c) and (d), the cleaning section 570a is within the projection area of the guide section 563a (the cross-sectional area in a vertical plane perpendicular to the left-to-right direction, shown by hatching) when viewed from the left and right directions.
[0042] The guide shoe 363 of the landing door 36 is the same as the guide shoe 563 of the car door 56, and the landing door 36 is also provided with a cleaning tool similar to the cleaning tool 570 of the car door 56.
[0043] As described above, according to the door devices 35 and 55 of this embodiment, the cleaning tool 570 is provided so as to be height-adjustable, and its height can be adjusted to match the positional relationship between the lower part of the door 36 and 56 and the bottom surface of the grooves 381a and 581a of the sills 381 and 581. Therefore, according to the door devices 35 and 55 of this embodiment, the cleaning tool 570 can be appropriately provided according to the conditions of the installation site of the elevator 1.
[0044] For example, the height of the cleaning part 570a of the cleaning tool 570 can be adjusted to match the depth of the grooves 381a, 581a in the thresholds 381, 581, or the height of the cleaning part 570a can be adjusted to match the vertical shift in the installation height of the doors (i.e., the height of the bottom of the doors) due to the installation adjustment of the doors 36, 56. Furthermore, since contact between the cleaning part 570a and the bottom surface of the grooves 381a, 581a can cause abnormal noise, the height of the cleaning part 570a can be adjusted so that it floats (is separated from) the bottom surface of the grooves 381a, 581a.
[0045] According to the door devices 35 and 55 of this embodiment, the cleaning portion 570a of the cleaning tool 570 is positioned close to the guide portion 563a of the guide shoe 363 and 563, and the fixing portion 570b of the cleaning tool 570 has a shape that extends upward from the cleaning portion 570a. Therefore, according to the door devices 35 and 55 of this embodiment, the cleaning tool 570 does not protrude significantly laterally from the side edge of the guide shoe 363 and 563, resulting in an overall compact design. In contrast, with the door device described in Patent Document 1, the fixing portion of the cleaning tool extends laterally from the cleaning portion, resulting in an overall horizontally elongated design that occupies a large area. Furthermore, because the cleaning portion protrudes significantly laterally from the side edge of the guide shoe and is separated from the guide shoe, there is a risk that the cleaning tool may come into contact with surrounding objects and be damaged.
[0046] According to the door devices 35 and 55 of this embodiment, the cleaning portion 570a and the fixing portion 570b of the cleaning tool 570 are arranged to fit within a width region in the left-right direction, with the vertical line (vertical line) passing through the tip edge of the projection 564b of the fixing portion 563b of the guide shoe 363 and 563 and the vertical line (vertical line) passing through the side edge of the guide portion 563a of the guide shoe 363 and 563 as the boundary line. Therefore, according to the door devices 35 and 55 of this embodiment, the cleaning tool 570 does not protrude laterally from the side edge of the guide shoe 363 and 563, and the overall design can be made more compact.
[0047] According to the door devices 35 and 55 of this embodiment, the cleaning tool 570 can be repositioned to a height position such that, when viewed from the left or right direction, the cleaning portion 570a of the cleaning tool 570 is within the projection area (cross-sectional area in a vertical plane perpendicular to the left and right direction) of the guide portion 563a of the guide shoe 363 and 563. Therefore, according to the door devices 35 and 55 of this embodiment, for example, when the cleaning tool 570 is assembled into the door 36 and 56 and shipped from the factory, raising the cleaning tool 570 prevents it from coming into contact with surrounding objects and being damaged during transport, and also allows the cleaning tool 570 to be adjusted to the required height position during installation.
[0048] Furthermore, if, when viewed from the left or right, the head portion of the cleaning section 570a of the cleaning tool 570 is contained within the projection area of the guide portion 563a of the guide shoes 363, 563, and only the brush 572 protrudes from the lower end line of the guide portion 563a toward the bottom surface of the grooves 381a, 581a of the sills 381, 581, then even if the doors 36, 56 are tilted when an object comes into contact with the bottom of them when the doors are closed, if the grooves 381a, 581a are shallow, the guide portion 563a will come into contact with the bottom surface of the grooves 381a, 581a before the head portion of the cleaning section 570a, thus preventing damage to the head portion.
[0049] According to the door devices 35 and 55 of this embodiment, the thickness T2 in the front-rear direction of the cleaning portion 570a of the cleaning tool 570 is smaller than the thickness T1 in the front-rear direction of the guide portion 563a of the guide shoe 363 and 563. Therefore, according to the door devices 35 and 55 of this embodiment, the cleaning portion 570a does not come into contact with the side wall of the groove 581a of the sill 581 when the door is opened and closed, and wear of the cleaning portion 570a can be prevented.
[0050] It should be noted that the present invention is not limited to the embodiments described above, and various modifications are possible without departing from the spirit of the invention.
[0051] In the above embodiment, the cleaning tool 570 is provided on the guide shoes 363, 563 on the door closing side (door stop side). However, the present invention is not limited thereto. The cleaning tool may be provided on the guide shoe on the door opening side (door pocket side). Alternatively, the cleaning tool may be provided on both guide shoes.
[0052] In the above embodiment, the recess 563c of the guide shoe 363,563 is provided at the corner on the door closing side (door stop side). However, the present invention is not limited thereto. The recess may also be provided at the corner on the door opening side (door pocket side).
[0053] In the above embodiment, the cleaning tool 570 is a cleaning tool for the brush 572. However, the present invention is not limited thereto. In short, any type of cleaning tool is acceptable as long as it has the function of cleaning the groove as the door moves. For example, as shown in Figure 8, the cleaning tool 570 is a scraper.
[0054] In the above embodiment, the base 564 of the guide shoe 563 is rectangular, and as a result, the tip edge of the projection 564b of the fixing portion 563b is a line that follows the vertical direction. Also, the side edge of the guide portion 563a of the guide shoe 563 is a line that follows the vertical direction. However, the present invention is not limited thereto. For example, the tip edge and the side edge may be curves that bulge outward in the center. In this case, the "line in the vertical direction passing through the tip edge of the projection of the fixing portion of the guide body" and the "line in the vertical direction passing through the side edge of the guide portion of the guide body" in the present invention may be a line passing through the most bulging point of the curve, or a line passing through any point on the curve.
[0055] In the above embodiment, the door opening / closing device 59 connects the drive motor 590 and the pulley 592 with a reduction belt 593, and indirectly drives the pulley 592 and the drive belt 594 wrapped around the pulley 592. However, the present invention is not limited thereto. The door opening / closing device may also be configured in which the pulley is directly connected to the drive motor, and the pulley and the drive belt wrapped around the pulley are driven directly.
[0056] In this invention, terms that specify shapes, parts, states, or directions, such as "rectangular," "straight line," "center," "center," "end," "same," "parallel," "up and down," "front and back," and "left and right," include not only the terms themselves but also the concept of "abbreviation," meaning something similar or alike. Furthermore, "upwards" and "downwards" are not limited to the vertical direction but also include directions that are inclined with respect to the vertical direction. [Explanation of symbols]
[0057] 1...Elevator, 2...Hoistway, 30...Landing, 31...Three-sided frame, 35...Landing door device, 36...Landing door, 360...Door panel, 361...Door hanger, 362...Roller, 363...Guide shoe (guide body), 38...Door support structure, 380...Door rail, 381...Sill, 381a...Groove, 5...Cage, 5a...Opening, 55...Cage door device, 56...Cage door, 560...Door panel, 5 60a...Bracket, 561...Door hanger, 562...Roller, 563...Guide shoe (guide body), 563a...Guide part, 563b...Fixing part, 563c...Recess, 563d...Through hole (round hole), 563e...Screw hole, 564...Base, 564a...First projection, 564b...Second projection (mounting part), 565...Guide member, 566...Fixing device, 566a...Plate nut, 570...Cleaning device 570a...Cleaning section, 570b...Fixing section, 570c...Through hole (elongated hole), 571...Base, 572...Brush, 573...Fixing device, 575...Connecting body, 58...Door support structure, 580...Door rail, 581...Sill, 581a...Groove, 59...Door opening and closing device, 590...Drive motor, 591...Reduction pulley, 592...Pulley, 593...Reduction belt, 594...Drive belt, H1...Guide shoe H2: Height of the guide portion 563a of 563, T1: Thickness of the guide portion 563a of the guide shoe 563 in the front-rear direction, T2: Thickness of the cleaning portion 570a of the cleaning tool 570 in the front-rear direction, W1: Width of the guide shoe 563 (guide portion 563a) on the door closed side, W2: Width of the guide shoe 563 (guide portion 563a) on the door open side
Claims
1. An elevator door device comprising a door that moves left and right to open and close an opening, the door having a guide body protruding from its lower end, a sill positioned along the lower edge of the opening and having a groove into which the guide body is inserted, and a cleaning tool that protrudes from the lower end of the door and is inserted into the groove to clean the groove as the door moves, The guide body comprises a guide portion that is inserted into a groove, a fixing portion that extends upward from the guide portion and has a projection that protrudes laterally, and is fixed to the lower part of the door, and a recess drawn between a vertical line passing through the tip edge of the projection of the fixing portion and the side edge of the guide portion. The cleaning tool comprises a cleaning section inserted into a groove adjacent to the guide portion of the guide body, and a fixing section extending upward from the cleaning section and fixed to a projection of the fixing portion of the guide body, and is provided so as to be height-adjustable. Elevator door mechanism.
2. The cleaning and fixing parts of the cleaning tool are positioned so as to be contained within an area defined by vertical lines passing through the tip edge of the projection of the fixing part of the guide body and vertical lines passing through the side edge of the guide part of the guide body. The elevator door device according to claim 1.
3. The cleaning tool can be repositioned to a height where, when viewed from the left or right, the cleaning part of the cleaning tool is within the projection area of the guide part of the guide body. An elevator door device according to claim 1 or claim 2.
4. The thickness of the cleaning part of the cleaning tool in the front-to-back direction is smaller than the thickness of the guide part of the guide body in the front-to-back direction. An elevator door device according to claim 1 or claim 2.
5. The projection of the fixing part of the guide body has a through hole. The fixing part of the cleaning tool has an elongated through-hole that is long in the vertical direction. Using a fastener inserted through two through-holes, the protruding part of the guide body's fixing section is fixed to the lower part of the door, and the fixing section of the cleaning tool is fixed to the protruding part of the guide body's fixing section. An elevator door device according to claim 1 or claim 2.
6. The elevator door device is provided as described in claim 1 or claim 2. Elevator.